Studies on Mexican Cactaceae. VI. A new species of Weberocereus (Cactaceae) from Oaxaca, Mexico

摘要

Weberocereus alliodorus, a new cactus species from the southern slopes of the Sierra Madre del Sur, Oaxaca, Mexico, is described, illustrated, mapped, and compared to its putative closest relative, W. glaber. The new species is characterized by its three-winged stems with rigid and setose, relatively long spines, relatively large flowers, and fruits with a penetrating onion-like odor.